1198125 has 40 divisors (see below), whose sum is σ = 2249280. Its totient is φ = 630000.

The previous prime is 1198123. The next prime is 1198133. The reversal of 1198125 is 5218911.

It is not a de Polignac number, because 1198125 - 2¹ = 1198123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16840 + ... + 16910.

It is an arithmetic number, because the mean of its divisors is an integer number (56232).

2^1198125 is an apocalyptic number.

1198125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1198125 is a deficient number, since it is larger than the sum of its proper divisors (1051155).

1198125 is an frugal number, since it uses more digits than its factorization.

1198125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 79 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1198125 is about 1094.5889639495. The cubic root of 1198125 is about 106.2104812663.

The spelling of 1198125 in words is "one million, one hundred ninety-eight thousand, one hundred twenty-five".